Windmill



B. F. BELLOWS.

WINDMILL.

APPLICATION FILED MAXI, 1919.

Patented Dec. 21', 1929.

2 SHEETS-SHEET l.

S14/vanto@ B. F. BELLOWS.

WINDMLL.

APPLICATION FILED IIIAYI, I9I9.

Patented Dec. 2L 1920.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFIE.

BENJAMIN F. BELLOWS, OF NEVABA, MISSOURI, ASSIGNOR OF ONE-THIRD TO MARTHA E. TOSTGN, 0F BRIGELAND, CALIFORNIA.

WINDMInL.

Application filed May 7, 1919.

Z 'o ad whom t may concern:

Be it known that I, BENJAMIN F. BEL- Lows, a citizen of the United States, residing at Nevada, in the county of Vernon and State of Missouri, have invented new and useful improvements in Windmills, of which the following is aspecification.

The object of the invention is to provide a simple, relatively inexpensive and efficient wind-mill designed for pumping and for furnishing power for driving machinery, the parts being so related as to minimize friction and secure the maximum strength and durability while enabling the operator to obtain ready access to the various parts for the purpose of lubrication and adjustment.

Further objects and advantages of the invention will appear hereinafter, it being understood that changes in form, proportion and details may be resorted to, within the scope of the claims, without departing from the spirit of the invention.

in the drawings Figure 1 is a side view of a wind-mill constructed in accordance with the invention.

Fig. 2 is a plan View of the same.

Fig. 3 is a sectional view taken through the wing controlling mechanism.

Fig. 4L is a detail perspective view showing the means by which vanes are brought back to operating position after having been thrown to feathering position.

Fig. 5 is a detail perspective view of the inner end of one of the wing shafts showing mounted thereon the holding cam and the tappet.

The frame work or tower 10, which may be either of wood or metal is preferably mounted upon a concrete or cement foundation 11, so as to give the requisite solidity to the structure, and mounted therein is a tubular power shaft 12 carrying a drive gear 13 meshing for example with a pinion 14 on a driven or service shaft 15 from which motion. may be communicated for the operation of a pump or other machinery.

Attached to the drive shaft is a wind wheel spider 16 of which the arms 17 are provided with inner and outer seats 18 and Specification of Letters Patent.

Patented Dec. 21, 1920.

Serial No. 295,327.

19 preferably having lateral flanges 20 and 21.

Mounted in the seats are the bases 22 of pedestals 23 in which are formed bearings for the shafts 2d of the blades 25 which are of the feathering type andare, as shown, designed to be reversed in position so as to present their broad surfaces or sides to the wind on the forwardly moving side of the 'tion bearing in the bore of the drive shaft as by providing it with collars 29 and 30 which are supported by shoulders 31 and 32 with interposed anti-friction balls 33.

The vane stem carries a disk 34: having a depending flange 35 for engagement with holding cams 36 on the blade shafts, and the vane stem also carries tappet arms 37 and 38 for engagement successively by tappets 39 on said blade shafts whereby as the wheel revolves under the influence of the air striking the blades, the latter are alternately moved from one position to the other in which they are held respectively by the engagement of the holding cams which are in operative relation with the flange of the disk 34.

1. A wind mill having a vertical tubular drive shaft, a vane having a stem telescopically mounted within the bore of the drive shaft,` a horizontal wind wheel having a spider carried by the drive shaft and feathering blades provided with shafts mounted upon the spider, a disk carried by the vane stem and provided with a cam fiange, cams carried by the blade shafts for blade holding contact with said flange, the extent of the latter being approximately equal to onehalf the orbital path of the wheel, and tappet arms on the vane stem for reversingthe position of the blade shafts.

2. A Wind mill having a vertical tubular from the vane stem respectively in the paths drive shaft, a vane having a stern telescopif of the tappet arms on the blade shafts, and 10 cally mounted upon the drive shaft, a horimeans for holding the Wheel shafts in their zontal Wind Wheel having a spider carried adjusted positions in the intervals between by the drive Yshaft and feathering blades engagements of' said tappet arms. provided With shafts mounted upon the In testimony whereof I affix my signature. spider, tappet arms extending radially from f the blade shafts, tappet arms extending BENJAMIN F. BELLOVVS. 

